View Single Post
Old 04-10-2014, 01:55 AM   #6442 (permalink)
Astro
Dreamer
 
Join Date: Nov 2013
Location: Australia
Posts: 350
Thanks: 95
Thanked 210 Times in 150 Posts
Quote:
Originally Posted by MPaulHolmes View Post
I got a little 0.1watt speaker, and am going to hook it up to a breadboarded dspic30f4011. I'll listen to 8KHz pwm, and then test out the spread spectrum switching. This will let me fine tune how much variation in frequency is needed before the noise isn't irritating anymore.
I was just thinking, now you need to create a mode where the pwm is varied in such a way that the motor plays a tune.

That way it won't just be the F1 guys that can make their motors play music.
  Reply With Quote
The Following 2 Users Say Thank You to Astro For This Useful Post:
MPaulHolmes (04-10-2014), thingstodo (04-12-2014)